For Ethiopia Harar coffee, a drip bag packing machine with an outer envelope automates the process of making filter bags (often with "ears" for hanging), filling them with ground coffee, sealing them (usually with ultrasonic sealing), placing them in an outer bag (like foil or plastic), and sealing/printing that outer bag, ensuring freshness with features like nitrogen flushing and SS304 stainless steel construction for hygiene and durability, suitable for small to large operations. Key features to look for include PLC control, automatic counting, date printing, and compatibility with various film materials.